Top management

Piotr Sieluk
CEO

Piotr Sieluk was appointed CEO of GTS in January 2009. Previously, between 2003 and 2005, he was holding position of Business Development director at Energis Polska responsible among others for successful sale of this company to GTS Group. He has started his carrier at Deloitte & Touche, followed by a number of management positions in Pioneer Mutual Fund, PricewaterhouseCoopers and Gravitas Private Equity Fund where he was co-founder and Investment Director. He graduated from Law Faculty, University of Warsaw, and holds an MBA from University of Minnesota.

Tomasz Galas
CFO

Joined the company in 1999 as CFO. He has spent many years in the ICT industry as he previously worked for Telepage and Siemens. Graduated from Faculty of Electronics and Information at Warsaw University of Technology. He also received his Master of Science in Business degree at London Business School cooperating with the Warsaw University of Technology.

Sławomir Koszołko
Strategy and Marketing Director

Strategy and Marketing Director at GTS Sp. z o.o. responsible for company‘s business development activities, strategic analysis, product management and marketing communication. He joined Energis Polska in 2001 as Regulations and Business Development Manager and during his work he was responsible for several crucial projects within the company including the development of the country-wide direct sales channel, introduction of the reseller model or post-acquisition integration activities. Before joining Energis Polska he had worked for four years in Andersen Business Consulting in Poland mainly with telecom clients. He graduated from the Warsaw School of Economics and holds also an MBA diploma from the Manchester Business School.

Cezary Chałupa
Sales Director

Cezary Chałupa was appointed Sales Director of GTS in January 2011. Previously, between 2003 - 2010, he was holding a number of management positions at Orange including Corporate Sales Director, Key Account Department Director and Business Development Manager. He has started his carrier at PriceWaterhouse Coopers and later worked for ComArch. He graduated from Department of Management, University of Economics in Poznan. He holds postgraduate studies diploma from The Schools of Banking in Poznan an MBA from Carlson School of Management, University of Minnesota.

Piotr Wieczorkiewicz
Chief Operations Officer

Piotr Wieczorkiewicz was appointed Chief Operations Officer of GTS in January 2011. Previously, he has been involved with Crowley Data Poland for 10 years. He has been Managing Director since 2005. Prior to that, he worked as Operations Director responsible for establishing the Operations Department and the Sales Technical Support Group, as well as for developing the principles of cooperation between strategic departments of CDP. He is graduated by the Warsaw University of Technology Faculty of Electronics and Information Technology and MBA from the US Business school in Prague and College of Business at Rochester Institute of Technology.